ELM elimination with Li powder injection in EAST discharges using the tungsten upper divertor
ELM elimination with Li powder injection in EAST discharges using the tungsten upper divertor
复制标题
使用钨上部偏滤器在 EAST 放电中通过锂粉末注入消除 ELM
DOI：
10.1088/1741-4326/aa9e3f
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发表时间：
2018-01
期刊：
影响因子：
3.3
通讯作者：
Li Y Y
中科院分区：
文献类型：
--
作者：
Maingi R;Hu J S;Sun Z;Tritz K;Zuo G Z;Xu W;Huang M;Meng X C;Canik J M;Diallo A;Lunsford R;Mansfield D K;Osborne T H;Gong X Z;Wang Y F;Li Y Y
我们报道了在EAST器件中首次成功地使用锂(Li)来消除具有钨偏滤器面向等离子体的组件的边缘局域模(ELM)。向钨上偏滤器刮削层注入Li粉成功消除了ELMS，为3-5 S在东部。ELM的消除在恒定的锂输送速率下的连续放电中逐渐变得更有效，偏滤器Dα基线排放减少，这两个迹象都表明改善了壁条件。还观察到存储能量和归一化能量限制的适度下降，但限制相对于H98保持在远高于1的水平，扩展了先前通过向EAST的低碳偏滤器中注入Li来消除ELM的结果(Hu等人，2015物理。莱特牧师。114 055001)。这些结果可以与最近在ASDEX-Upgrade中观察到的锂颗粒未能缓解ELMS(Lang等人2017年核)进行比较。Fusion 57 016030)，突出了连续粉末注射用于实时榆树消除的一个比较优势。
We report the first successful use of lithium (Li) to eliminate edge-localized modes (ELMs) with tungsten divertor plasma-facing components in the EAST device. Li powder injected into the scrape-off layer of the tungsten upper divertor successfully eliminated ELMs for 3–5 s in EAST. The ELM elimination became progressively more effective in consecutive discharges at constant lithium delivery rates, and the divertor Dα baseline emission was reduced, both signatures of improved wall conditioning. A modest decrease in stored energy and normalized energy confinement was also observed, but the confinement relative to H98 remained well above 1, extending the previous ELM elimination results via Li injection into the lower carbon divertor in EAST (Hu et al 2015 Phys. Rev. Lett. 114 055001). These results can be compared with recent observations with lithium pellets in ASDEX-Upgrade that failed to mitigate ELMs (Lang et al 2017 Nucl. Fusion 57 016030), highlighting one comparative advantage of continuous powder injection for real-time ELM elimination.
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DOI：
10.1063/1.4889777
发表时间：
2014-07
期刊：
The Review of scientific instruments
影响因子：
--
作者：
H. Liu;Y. Jie;W. Ding;D. Brower;Z. Zou;W. Li;Zhongli Wang;J. Qian;Yanji Yang;L. Zeng
通讯作者：
H. Liu;Y. Jie;W. Ding;D. Brower;Z. Zou;W. Li;Zhongli Wang;J. Qian;Yanji Yang;L. Zeng
影响因子：
3.3
作者：
W. Heidbrink;Jinchoon Kim;R. Groebner
通讯作者：
W. Heidbrink;Jinchoon Kim;R. Groebner
影响因子：
3.3
作者：
W. Solomon;K. Burrell;A. Garofalo;R. Groebner;C. Lasnier;M. Makowski;T. Osborne;H. Reimerdes;J. Degrassie;E. Doyle;T. Evans;M. Fenstermacher;G. Jackson;M. Schaffer
通讯作者：
W. Solomon;K. Burrell;A. Garofalo;R. Groebner;C. Lasnier;M. Makowski;T. Osborne;H. Reimerdes;J. Degrassie;E. Doyle;T. Evans;M. Fenstermacher;G. Jackson;M. Schaffer
影响因子：
3.1
作者：
Hu, J. S.;Sun, Z.;Vinyar, I.
通讯作者：
Vinyar, I.
影响因子：
3.1
作者：
A. Loarte;G. Saibene;R. Sartori;M. Becoulet;L. Horton;T. Eich;A. Herrmann;M. Laux;G. Matthews;S. Jachmich;N. Asakura;A. Chankin;A. Leonard;G. Porter;G. Federici;M. Shimada;M. Sugihara;G. Janeschitz
通讯作者：
A. Loarte;G. Saibene;R. Sartori;M. Becoulet;L. Horton;T. Eich;A. Herrmann;M. Laux;G. Matthews;S. Jachmich;N. Asakura;A. Chankin;A. Leonard;G. Porter;G. Federici;M. Shimada;M. Sugihara;G. Janeschitz